| 摘要 |
A security letterbox assembly comprises a watertight body (1), a letter plate (4), a delivery flap (5), an adjustable mail protection means (6) and a mail detention means (11,12,14). The mail protection means may include three plates held by two axles, where at least one axle is spring loaded and is designed to prevent mail being removed from the body, whilst moving towards the body to allow mail to be inserted into the body. The mail detention means may be in the form of a downwardly urged jagged edged flap (11) and jagged edged mail retention means (14), between which the mail is detained. A watertight means (9) is located between the body and structure (3) and in a further aspect of the invention is flexible to maintain a seal when the body is moved away from the structure. The body is adjustably secured to the structure and letter plate by fixing means (19, 24-26). |
